For end point https://api.chess.com/pub/match/{ID} whilst in registration, when new players register for the match the endpoint updates quickly (almost in real time).
However if the roster gets locked then the field "locked": only updates at the next cycle, which could be as long as 12 hours, by which time the match could have started.
This field is only of any value if it updates as quickly as new member registrations.
For end point https://api.chess.com/pub/match/{ID} whilst in registration, when new players register for the match the endpoint updates quickly (almost in real time).
However if the roster gets locked then the field "locked": only updates at the next cycle, which could be as long as 12 hours, by which time the match could have started.
This field is only of any value if it updates as quickly as new member registrations.